fsck.h revision 3a8c9a69525f75a6c59bee0eb3d882ddc341b3f1 
1/**
2 * fsck.h
3 *
4 * Copyright (c) 2013 Samsung Electronics Co., Ltd.
5 *             http://www.samsung.com/
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11#ifndef _FSCK_H_
12#define _FSCK_H_
13
14#include "f2fs.h"
15
16/* fsck.c */
17struct orphan_info {
18	u32 nr_inodes;
19	u32 *ino_list;
20};
21
22struct f2fs_fsck {
23	struct f2fs_sb_info sbi;
24
25	struct orphan_info orphani;
26	struct chk_result {
27		u64 valid_blk_cnt;
28		u32 valid_nat_entry_cnt;
29		u32 valid_node_cnt;
30		u32 valid_inode_cnt;
31		u32 multi_hard_link_files;
32		u64 sit_valid_blocks;
33		u32 sit_free_segs;
34		u32 free_segs;
35	} chk;
36
37	struct hard_link_node *hard_link_list_head;
38
39	char *main_seg_usage;
40	char *main_area_bitmap;
41	char *nat_area_bitmap;
42	char *sit_area_bitmap;
43
44	u64 main_area_bitmap_sz;
45	u32 nat_area_bitmap_sz;
46	u32 sit_area_bitmap_sz;
47
48	u64 nr_main_blks;
49	u32 nr_nat_entries;
50
51	u32 dentry_depth;
52};
53
54#define BLOCK_SZ		4096
55struct block {
56	unsigned char buf[BLOCK_SZ];
57};
58
59enum NODE_TYPE {
60	TYPE_INODE = 37,
61	TYPE_DIRECT_NODE = 43,
62	TYPE_INDIRECT_NODE = 53,
63	TYPE_DOUBLE_INDIRECT_NODE = 67,
64	TYPE_XATTR = 77
65};
66
67struct hard_link_node {
68	u32 nid;
69	u32 links;
70	struct hard_link_node *next;
71};
72
73enum seg_type {
74	SEG_TYPE_DATA,
75	SEG_TYPE_CUR_DATA,
76	SEG_TYPE_NODE,
77	SEG_TYPE_CUR_NODE,
78	SEG_TYPE_MAX,
79};
80
81extern void fsck_chk_orphan_node(struct f2fs_sb_info *);
82extern int fsck_chk_node_blk(struct f2fs_sb_info *, struct f2fs_inode *, u32,
83		enum FILE_TYPE, enum NODE_TYPE, u32 *);
84extern void fsck_chk_inode_blk(struct f2fs_sb_info *, u32, enum FILE_TYPE,
85		struct f2fs_node *, u32 *, struct node_info *);
86extern int fsck_chk_dnode_blk(struct f2fs_sb_info *, struct f2fs_inode *,
87		u32, enum FILE_TYPE, struct f2fs_node *, u32 *,
88		struct node_info *);
89extern int fsck_chk_idnode_blk(struct f2fs_sb_info *, struct f2fs_inode *,
90		enum FILE_TYPE, struct f2fs_node *, u32 *);
91extern int fsck_chk_didnode_blk(struct f2fs_sb_info *, struct f2fs_inode *,
92		enum FILE_TYPE, struct f2fs_node *, u32 *);
93extern int fsck_chk_data_blk(struct f2fs_sb_info *sbi, u32, u32 *, u32 *,
94		int, enum FILE_TYPE, u32, u16, u8);
95extern int fsck_chk_dentry_blk(struct f2fs_sb_info *, u32, u32 *, u32 *, int);
96int fsck_chk_inline_dentries(struct f2fs_sb_info *, struct f2fs_node *,
97		u32 *, u32 *);
98
99extern void print_node_info(struct f2fs_node *);
100extern void print_inode_info(struct f2fs_inode *);
101extern struct seg_entry *get_seg_entry(struct f2fs_sb_info *, unsigned int);
102extern int get_sum_block(struct f2fs_sb_info *, unsigned int,
103				struct f2fs_summary_block *);
104extern int get_sum_entry(struct f2fs_sb_info *, u32, struct f2fs_summary *);
105extern void get_node_info(struct f2fs_sb_info *, nid_t, struct node_info *);
106extern void nullify_nat_entry(struct f2fs_sb_info *, u32);
107extern void rewrite_sit_area_bitmap(struct f2fs_sb_info *);
108extern void build_nat_area_bitmap(struct f2fs_sb_info *);
109extern void build_sit_area_bitmap(struct f2fs_sb_info *);
110extern void fsck_init(struct f2fs_sb_info *);
111extern int fsck_verify(struct f2fs_sb_info *);
112extern void fsck_free(struct f2fs_sb_info *);
113extern int f2fs_do_mount(struct f2fs_sb_info *);
114extern void f2fs_do_umount(struct f2fs_sb_info *);
115
116/* dump.c */
117struct dump_option {
118	nid_t nid;
119	int start_sit;
120	int end_sit;
121	int start_ssa;
122	int end_ssa;
123	int32_t blk_addr;
124};
125
126extern void sit_dump(struct f2fs_sb_info *, int, int);
127extern void ssa_dump(struct f2fs_sb_info *, int, int);
128extern void dump_node(struct f2fs_sb_info *, nid_t);
129extern int dump_inode_from_blkaddr(struct f2fs_sb_info *, u32);
130
131#endif /* _FSCK_H_ */
132